Single-portion package, use, and preparation machine

ABSTRACT

A single-portion package for producing a beverage from a beverage concentrate, includes a closable concentrate container for holding the beverage concentrate. The single-portion package has an extraction and mixing device, comprising: an extraction means for extracting the beverage concentrate from the concentrate container, a mixing chamber for preparing the beverage from the beverage concentrate extracted from the concentrate container and from a mixing liquid that can be supplied, an inlet for letting the mixing liquid into the mixing chamber, and an outlet for letting the beverage out of the mixing chamber.

TECHNICAL FIELD

The invention relates to a single-portion package for producing a beverage from a beverage concentrate.

TECHNICAL BACKGROUND

Single-portion packages for coffee, for example, have been known for a long time. In order to dissolve the coffee in water, hot water is guided through the capsule under pressure.

In the last few years, single-portion packages for beverage concentrates, e.g. syrup or powder, have also come onto the market in which the beverage concentrate is mixed or dissolved completely in water or carbonated water.

Known from WO2013114346 are syrup capsules which are pressed onto a bottle already filled with carbonated water for emptying by hand. In this case, an inner seal membrane is pierced by means of piercing or cutting parts and the syrup runs due to gravity into the bottle which then needs to be shaken or at least pivoted. The bottle neck must also be dimensioned so that the capsule and the release mechanism fits on the bottle or is released correctly. The capsule is not suitable for beverage preparation machines.

US20110166910 describes a syrup capsule which is opened in a beverage preparation machine and thereby squeezed out. A disadvantage is that parts of the beverage preparation machine come in contact with the syrup and thus subsequent beverages could become contaminated with the preceding syrup (so-called cross-contamination), which in any case can be a problem for allergy sufferers.

Capsules are also known which are pierced from one side in beverage preparation machines similarly to the known coffee capsules in order to press the mixing liquid through the capsule and let it escape on the other side. Here also there is the risk of cross-contamination.

SUMMARY OF THE INVENTION

It is the object of the invention to provide a single-portion package for producing a beverage from a beverage concentrate, which makes subsequent mixing in the beverage container unnecessary and avoids cross-contamination.

This object is solved by the features of claim 1. The single-portion package for producing a beverage from a beverage concentrate comprises a closable concentrate container for holding the beverage concentrate and an extraction and mixing device. The extraction and mixing device comprises an extraction means for extracting the beverage concentrate from the concentrate container, a mixing chamber for preparing the beverage from the beverage concentrate extracted from the concentrate container and from a mixing liquid that can be supplied, an inlet for letting the mixing liquid into the mixing chamber and an outlet for letting the beverage out of the mixing chamber.

When inserting the single-portion package into a beverage preparation machine, a connection is made for the mixing liquid. When triggering the beverage preparation, the extraction means is actuated and the concentrate can flow into the mixing chamber. At the same time, the supply of the mixing liquid begins. In the mixing chamber the beverage is then prepared by continuously mixing the concentrate coming out of the concentrate container with the mixing liquid entering into the mixing chamber, e.g. water or carbonated water and is dispensed via the outlet directly into a beverage container, e.g. a drinking glass or a bottle. The regions or parts coming in contact with the concentrate such as mixing chamber, extraction means and outlet are in this case part of the single-portion package and are removed with this. Cross-contaminations are not possible since the concentrate does not come in contact with parts of the beverage preparation machine.

In some embodiments, the concentrate container can have a thin point which is configured to be piercable by the extraction means. The thin point can be a sealing film welded onto the concentrate container. In this case, the concentrate container is filled from the same side as that from which it will subsequently be emptied when using the single-portion package. Alternatively, the thin point can also be moulded on and the concentrate container will be filled from a different side, usually from the opposite side. When using the single-portion package, the thin point is pierced by the extraction means and the concentrate can actively or passively be conveyed or flow into the mixing chamber.

In some embodiments, the extraction and mixing device can be fabricated in one piece, preferably by injection moulding.

In some embodiments, the extraction and mixing device can be held on a container wall surrounding the thin point in a sealing manner with respect to this container wall. The extraction and mixing device with the extraction means is thus arranged over the outer surface of the thin point. Usually the thin point of the concentrate container can at least partially delimit the mixing chamber on one side.

In some embodiments for extraction of the beverage concentrate the extraction means is configured to be movable towards the thin point or the entire extraction and mixing device can be configured to be movable with respect to the thin point. That is, the concentrate container with the thin point can be displaced with respect to the extraction means in such a manner that the thin point is pierced by the extraction means.

In some embodiments, the extraction means can comprise at least one piercing part for piercing the concentrate container, in particular the thin point. The extraction means can also be configured as at least one cutting part or additionally comprise such a part.

In some embodiments, the at least one piercing part can have an air duct by means of which air can be introduced into the concentrate container in order to press the beverage concentrate out of the concentrate container.

In some embodiments, the at least one piercing part can be arranged in the mixing chamber. The piercing part can then at the same time serve as a flow chicane for a better mixing.

In some embodiments, the inlet and the outlet can be arranged on opposite sides of the mixing chamber in order to achieve an improved mixing.

In some embodiments, the mixing chamber can have flow chicanes between inlet and outlet in order to achieve an increased mixing of concentrate and mixing liquid.

The flow chicanes can be formed completely or partially by the extraction means.

In some embodiments, the mixing chamber can be delimited on one side by the thin point of the concentrate container so that the beverage concentrate can enter directly into the mixing chamber.

The invention further relates to the use of a previously described single-portion package in a beverage preparation machine.

The invention further relates to a beverage preparation machine for a previously described single-portion package, comprising a holder for the single-portion package, an air supply which can be connected to the air duct and a liquid supply which can be connected to the inlet.

BRIEF DESCRIPTION OF THE FIGURES

The invention will be explained in detail hereinafter with reference to exemplary embodiments in connection with the drawing(s). In the figures:

FIG. 1 (a) and (b) each show a sectional view of a single-portion package with integrated extraction and mixing device;

FIG. 2 shows a sectional view of the single-portion package from FIG. 1 in the open state; and

FIG. 3 shows a sectional view of a further single-portion package.

WAYS FOR IMPLEMENTING THE INVENTION

FIGS. 1 to 3 each show simplified sectional views of a single-portion package 1 with integrated extraction and mixing device 3.

FIGS. 1(a) and 1(b) each show the same single-portion package 1 in two sections running approximately perpendicular to one another. The single-portion package 1 has a concentrate container 2 for holding a beverage concentrate which is emptied from the concentrate container 2 by means of the extraction and mixing device 3 and then mixed with a mixing liquid.

In the embodiment shown, the concentrate container 2 is configured to be bottle-shaped as a concentrate bottle with a bottle neck. Such a concentrate container 2 can, for example, be fabricated by means of blow moulding from plastic, preferably with a usual barrier layer for food. The opening used to fill the concentrate container 2 is sealed by means of a sealing film. The sealing film forms a thin point 8 of the concentrate container 2. Unlike the concentrate container 2 in FIGS. 1 and 2, the opening for filling the bottle-shaped concentrate container 2 can also be arranged at the wider end and closed with a sealing film 11, as shown in FIG. 3. The advantage of such an embodiment is that it can thereby be produced by injection moulding without blow moulding. In this case, the thin point 8 can be formed at the narrower end by a base having a smaller wall thickness compared with the container wall 9. Such a bottle can also have a co-injected barrier layer. Other container shapes, such as for example cylindrical containers are also possible.

The extraction and mixing device 3 is preferably fabricated in one piece from plastic by means of injection moulding and has a circumferential apron 12, by means of which it is held movably and sealingly against the container wall 9 running around the thin point 8 so that the thin point 8 is completely covered by the extraction and mixing device 3. For better holding, circumferential protuberances or sealing ribs can be provided on the container wall 9 and/or on the apron 12. The extraction and mixing device 2 is movable from the first closed position into a second open position when the single-portion package 1 is used. In the first position or base position, the single-portion package 1 is closed and ready for use. This is the state in which it is sold.

The extraction and mixing device 3 has a mixing chamber 5 which is delimited on one side by the thin point 8 of the concentrate container 2 and on the other side by the circumferential apron 12 and an adjoining base 13 of the extraction and mixing device 2.

The extraction and mixing device 3 further comprises extraction means in the form of a piercing part 4 a which projects from the base in the direction of the thin point 8 and which has an air duct 10 and an opening part 4 b projecting from the base 13 in the direction of the thin point 8. The extraction means 4 a, 4 b each extend with a pointed end or an end configured as a cutting blade in the first base position of the single-portion package 1 just below the thin point 8 of the concentrate container 2 so that upon displacement of the extraction and mixing device 3 in the direction of the thin point 8, the extraction means pierce or cut through this and allow the concentrate to flow out into the mixing chamber 5, as shown in FIG. 4.

The piercing part 4 a with the air duct 10 substantially serves to blow air into the concentrate container 2 in order to achieve a faster and more effective emptying of the concentrate. The piercing part 4 a alone would already bring about an emptying of the concentrate container 2. The air supply additionally prevents any undesired entry of the mixing liquid into the concentrate container 2. The piercing part 4 a alone would already bring about an emptying of the concentrate container 2. The opening part 4 b is configured in such a manner that it tears, breaks or cuts through a large area of the thin point 8 and thereby brings about the largest possible opening in the concentrate container 2 for extraction of the concentrate which results in an even faster emptying.

The extraction and mixing device 2 furthermore has an inlet 6 for the mixing liquid and an outlet 7 for the continuously mixed beverage, which can be seen in the sectional view from FIG. 1(b). In the embodiment shown, the inlet 6 projects in the form of a small tube laterally beyond the apron 12 and in a beverage preparation machine can be connected to a mixing liquid supply to supply water or carbonated water. In the embodiment shown the outlet 7 in the form of a small tube also projects downwards beyond the base 13 so that the mixture prepared in the mixing chamber 5 can be filled directly into a beverage container, e.g. glass, jug or bottle. Inlet 6 and outlet 7 are preferably arranged on opposite sides of the mixing chamber 5. In the usage state as shown in the figures, the concentrate container 2 is arranged at the top and the extraction and mixing device 3 at the bottom.

The mixing chamber 5 can additionally have flow chicanes in order to ensure a better mixing of inflowing mixing liquid with concentrate. The piercing part 4 a and the opening part 4 b can already form such flow chicanes as a result of their arrangement.

When using the single-portion package 1 in a beverage preparation machine, in a first step a connection is made between an air supply and the air duct 10 and between mixing liquid supply and the inlet 6. To this end, the air duct 10 in the form of a small tube can project laterally beyond the apron 12. Then the concentrate container 2 with the thin point 8 is pressed in the direction of extraction means 4 a, 4 b (arrow A in FIG. 3). The thin point 8 is thereby pierced and the concentrate container 2 opened. Air supply (arrow B in FIG. 3) and mixing liquid supply (arrow C in FIG. 1(b)) are switched on substantially at the same time. The mixing liquid is mixed continuously with the concentrate extracted from the concentrate container 2 in the mixing chamber 5 and emerges as mixed beverage from the outlet 7 (arrow D in FIG. 1(b)).

REFERENCE LIST

1 Single-portion package

2 Concentrate container

3 Extraction and mixing device

4 a Piercing part

4 b Opening part

5 Mixing chamber

6 Inlet

7 Outlet

8 Thin point

9 Container wall

10 Air duct

11 Sealing film

12 Apron

13 Base 

1. A single-portion package for producing a beverage from a beverage concentrate, comprising a closable concentrate container for holding the beverage concentrate, wherein the single-portion package has an extraction and mixing device comprising; an extraction means for extracting the beverage concentrate from the concentrate container, a mixing chamber for preparing the beverage from the beverage concentrate extracted from the concentrate container and from a mixing liquid that can be supplied, an inlet for letting the mixing liquid into the mixing chamber and an outlet for letting beverage out of the mixing chamber.
 2. The single-portion package according to claim 1, wherein the concentrate container has a thin point which is configured to be piercable by the extraction means.
 3. The single-portion package according to claim 2, wherein the extraction and mixing device is held on a container wall surrounding the thin point in a sealing manner with respect to the container wall.
 4. The single-portion package according to claim 2, wherein for extraction of the beverage concentrate the extraction means is arranged movably towards the thin point or the entire extraction and mixing device is configured to be movable with respect to the thin point.
 5. The single-portion package according to claim 1, wherein the extraction means comprises at least one piercing part for piercing the concentrate container.
 6. The single-portion package according to claim 5, wherein the at least one piercing part has an air duct by which air can be introduced into the concentrate container in order to press the beverage concentrate out of the concentrate container.
 7. The single-portion package according to 5, wherein the at least one piercing part is arranged in the mixing chamber.
 8. The single-portion package according to claim 1, wherein the inlet and the outlet are arranged on opposite sides of the mixing chamber.
 9. The single-portion package according to claim 1, wherein the mixing chamber has flow chicanes between the inlet and the outlet.
 10. The single-portion package according to claim 2, wherein the mixing chamber is delimited on one side by the thin point of the concentrate container.
 11. (canceled)
 12. A beverage preparation machine for the single-portion package of claim 1, comprising a holder for the single-portion package, an air supply which can be connected to the air duct and a liquid supply which can be connected to the inlet. 